Feeling scared is usual when we face an unknown, especially when it concerns our health. I've had several surgeries over the years and was scared to death with the first one. I was only mildly anxious over the last one.
Both myself and my daughter have had our wisdom teeth pulled while 17 and 18. It's too bad you didn't let the dentist pull them all when he pulled the first one. Maybe you stopped him because of fear? I don't know of anyone who still has their wisdom teeth. They almost always cause problems as we age.
I had mine pulled with a local anesthetic. My daughter had a general anesthetic. She doesn't remember anything about the surgery. My teeth were pulled by a dentist in general practice. Hers were pulled by an oral surgeon. I'm making that comparison because of the difference in our experiences. I remember mine being "no big deal." I was told it was a minor procedure that didn't require "surgery." My daughter was told that this is surgery and so she was frightened. She was also miserable for a couple days while recovering from the anesthesia.
I don't understand why it is necessary now to have a surgeon pull teeth. Surgeons are much more expensive. I had a tooth that needed a cap a few years ago and I was sent to a specialist who ended up pulling that tooth. If I'd had a cap it would cost nearly $2000. I have several caps and all of them were put in by a general dentist. The difference in price is astonishing even when compared with updated prices for the previous caps.
The primary source of pain when one has wisdom teeth pulled is caused by a dry socket, if you get one. If you take care of the socket as directed it is unlikely that you will get a dry socket. My daughter smoked the next day after and had a dry socket. She was miserable for days.
Do you know why you're so scared? If you can figure that out then you can get reassurance about the issue that is most concerning for you.
I've known several people who've had their wisdom teeth pulled and they all had an OK experience. Yes, there is some pain. My daughter and I only took otc pain relievers and were fine. The socket heals in a short time if you keep it moist all of the time. They'll tell you how to do that.
How much pain you feel will be related to how sensitive to pain you are. I can tell you the pain of having teeth pulled is minor in comparison to the pain of surgeries and child birth.
Pulling teeth is not life threatening and if you're having difficulty with your teeth now you'll be glad you had them pulled. They always tell you that anesthesia can result in complications including death. But the chance is very minimal. They just have to say that to manage litigation possibilities.
Anesthesia has gotten better over the years. My last major surgery was a few years ago. I had twilight anesthesia for a couple of the diagnostic procedures and woke up quickly feeling alert. I didn't remember anything about the procedure. This is the most likely anesthetic that they will give you since they're pulling 3 teeth at once. I would choose twilight anesthesia if I were to have my wisdom teeth pulled again and have them all taken out at once.
If you are frightened to the point that it interferes with your day to day life you can ask for an anxiety relief med. I discovered that I couldn't complete an MRI. They gave me Valium before the next attempt and it helped a whole lot.
Sometimes our fears pop up and surprise us. I've had several major surgeries and had very little difficulty with fear in comparison to the fear I felt going into the MRI. The fear was irrational but real. If you're having that sort of fear ask for Valium or some such med. It is not habit forming if taken for a short period of time. At 65 I believe in being as kind to myself as possible. As a youth I "toughed" it out. I'm glad that I have to do that less often now. Thanks to modern medicine.
You will be OK. You'll want to slow down for a few days and the gauze in the socket is uncomfortable. All of that is really minor in comparison to child birth. You survived that.